Table 12.

The mean values of chlorophyll content (SPAD unit) of lovage plants as affected with planting spacing, melatonin concentrations and their combination treatments in two cuts of both seasons.

Treatments	First season		Second season
	1st cut	2nd cut	1st cut	2nd cut
Planting space between plants in row (cm)
15	44.90 ± 2.81 b*	42.83 ± 2.32 c	42.17 ± 2.36 c	46.48 ± 4.04 a
30	45.98 ± 1.69 b	48.30 ± 1.92 b	49.34 ± 1.85 b	47.27 ± 4.91 a
45	49.69 ± 2.46 a	52.49 ± 2.58 a	51.58 ± 1.43 a	48.40 ± 3.43 a
Melatonin concentrations (µM)
Without soaking	44.42 ± 3.03 c	45.99 ± 5.03 c	45.70 ± 5.22 c	44.40 ± 3.79 c
0	46.00 ± 2.20 b	47.73 ± 4.16 b	47.70 ± 3.88 b	45.49 ± 2.99 c
75	48.88 ± 2.59 a	50.61 ± 4.85 a	49.37 ± 3.44 a	48.92 ± 1.81 b
100	48.13 ± 2.72 a	47.16 ± 3.61 bc	48.01 ± 5.06 b	52.06 ± 2.81 a
Interaction
T1	41.43 ± 1.00 e	39.80 ± 1.45 h	39.27 ± 0.68 g	41.67 ± 0.47 d
T2	43.83 ± 1.85 de	42.50 ± 1.75 g	42.83 ± 0.32 ef	44.90 ± 4.09 cd
T3	47.40 ± 0.60 c	45.23 ± 0.38 ef	45.07 ± 0.81 de	49.43 ± 1.76 b
T4	46.93 ± 1.85 cd	43.77 ± 0.68 fg	41.50 ± 1.68 fg	49.93 ± 0.59 b
T5	43.97 ± 1.85 de	47.47 ± 1.24 de	47.10 ± 1.71 cd	42.13 ± 0.76 d
T6	46.07 ± 1.32 cd	49.40 ± 0.66 cd	49.20 ± 0.56 bc	48.03 ± 1.45 bc
T7	47.23 ± 0.70 c	50.33 ± 0.72 bc	50.67 ± 1.53 ab	48.40 ± 1.97 bc
T8	46.67 ± 0.95 cd	46.00 ± 0.90 ef	50.40 ± 1.22 ab	48.93 ± 2.30 b
T9	47.87 ± 0.92 bc	50.70 ± 1.91 bc	50.73 ± 1.72 ab	49.40 ± 0.44 b
T10	48.10 ± 0.70 bc	51.30 ± 1.11 bc	51.07 ± 2.00 ab	43.53 ± 1.01 d
T11	52.00 ± 2.00 a	56.27 ± 1.42 a	52.37 ± 0.91 a	55.03 ± 0.84 a
T12	50.80 ± 3.04 ab	51.70 ± 0.72 b	52.13 ± 0.76 a	51.2 ± 3.06 b

^*Means followed by the same letter are not significantly different by the protected LSD, P ≤ 0.05. Data are means value ± SE (n = 3). 1st cut and 2nd cut means the first and second cutts, respectively.